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gtk2: fix GetClipRGN

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git-svn-id: trunk@38744 -
This commit is contained in:
paul 2012-09-19 06:27:39 +00:00
parent f997ff974d
commit c236cc35fc
1 changed files with 8 additions and 9 deletions
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17
lcl/interfaces/gtk2/gtk2winapi.inc
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@ -4582,22 +4582,21 @@ begin
CurRegionObject := ClipRegion^.GDIRegionObject; CurRegionObject := ClipRegion^.GDIRegionObject;
ARect := Rect(0, 0, 0, 0); ARect := Rect(0, 0, 0, 0);
if Assigned(CurRegionObject) then if Assigned(CurRegionObject) then
begin
// create a copy of the current clipregion // create a copy of the current clipregion
ClipRegionWithDCOffset := gdk_region_copy(CurRegionObject); ClipRegionWithDCOffset := gdk_region_copy(CurRegionObject)
// move it to the DC offset
// Example: if the ClipRegion is at 10,10 and the DCOrigin is at 10,10,
// then the ClipRegion must be moved to 0,0
DCOrigin := Offset;
//debugln('TGtk2WidgetSet.GetClipRGN DCOrigin=',dbgs(DCOrigin),' CurRegionObject=',dbgs(CurRegionObject),' ',dbgs(ARect));
gdk_region_offset(ClipRegionWithDCOffset, -DCOrigin.x, -DCOrigin.Y);
end
else else
begin begin
// create a default clipregion // create a default clipregion
GetClipBox(DC, @ARect); GetClipBox(DC, @ARect);
LPtoDP(DC, ARect, 2);
ClipRegionWithDCOffset := CreateRectGDKRegion(ARect); ClipRegionWithDCOffset := CreateRectGDKRegion(ARect);
end; end;
// move it to the DC offset
// Example: if the ClipRegion is at 10,10 and the DCOrigin is at 10,10,
// then the ClipRegion must be moved to 0,0
DCOrigin := Offset;
gdk_region_offset(ClipRegionWithDCOffset, -DCOrigin.x, -DCOrigin.Y);
// free the old region in RGN // free the old region in RGN
if Assigned({%H-}PGdiObject(RGN)^.GDIRegionObject) then if Assigned({%H-}PGdiObject(RGN)^.GDIRegionObject) then
gdk_region_destroy({%H-}PGdiObject(RGN)^.GDIRegionObject); gdk_region_destroy({%H-}PGdiObject(RGN)^.GDIRegionObject);